The pulse rates for 13 adult women were as follows. Construct a 0.90 confidence interval for the mean pulse rate. (Give your answers correct to one decimal place.)
96 | 63 | 84 | 69 | 71 | 108 | 95 | 57 | 85 | 102 | 105 | 79 | 92 |
Lower limit | |
Upper limit |
We have given that,
Sample mean =85.077
Sample standard deviation =16.444
Sample size =13
Level of significance=0.1
Degree of freedom =12
t critical value is (by using t table)=1.7823
Confidence interval formula is
=(76.948, 93.206)
Lower confidence limit=77.0
Upper confidence limit= 93.2
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